The Stress Intensity Factor of convex embedded polygonal cracks

Abstract

In the present work, a simple formula for the evaluation of the stress intensity factor (SIF) of convex embedded polygonal cracks has been proposed. This formula is structured as a correction factor of the Oore-Burns� equation and is based on accurate three-dimensional FE analysis. Furthermore, a precise formula for a regular polygonal crack has been given.

Keywords

• weight function
• stress intensity factor
• three-dimensional crack